Rotary Table Dog and Sensor Layout for Flexible Angle Setting
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Solution Overview
Problem
Existing rotary tables face challenges in easily setting and adjusting the rotation angle due to limited sensor and dog attachment positions, often requiring dedicated brackets that restrict flexibility and space.
Innovation Solution
A rotary table design featuring a movable ring with a scale on its outer peripheral side surface and a groove-shaped recess, allowing the dog to be fixed at any position, combined with a sensor attachment structure using a simple metal holder for flexible positioning and a worm drive mechanism for stable rotation control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a dedicated bracket is used for sensor and dog attachment, then the attachment position is fixed and stable, but the flexibility and ease of adjusting the rotation angle is reduced
Solution Approach 1:
The patent makes the dog attachment position dynamic by providing multiple predetermined attachment positions around the circumference of the rotary table, allowing the dog to be moved to different positions as needed. This eliminates the need for a fixed dedicated bracket while maintaining stable attachment through the slot-and-dog mechanism.
Solution Approach 2:
The patent segments the attachment mechanism into separate components: a slot structure fixed to the rotary table and a movable dog with multiple attachment positions. This segmentation allows independent adjustment of the dog position while keeping the base structure simple and stable.
2Adaptability or versatility
If multiple predetermined attachment positions are provided for the dog, then the rotation angle can be easily adjusted, but the structure becomes more complex
Solution Approach 1:
The patent creates a universal attachment system where the slot structure serves multiple functions: it provides mechanical guidance for the dog, defines multiple predetermined attachment positions, and maintains stable connection between the dog and rotary table. This multi-functionality reduces the need for separate adjustment mechanisms.
Solution Approach 2:
The patent introduces a slot as an intermediary element between the rotary table and the dog. The slot mediates the connection by providing a constrained path for the dog while allowing positional adjustment, thus achieving versatility without proportionally increasing structural complexity.
3Adaptability or versatility
If the dog is fixed to the movable ring at a specific position, then the structure is simple, but the rotation angle cannot be easily changed
Solution Approach 1:
The patent enables self-service adjustment by providing multiple predetermined attachment positions that can be selected and changed by the user without requiring external tools or complex adjustment mechanisms. The dog can be independently positioned at any of the predetermined locations along the slot.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables easy and reliable adjustment of the rotation angle, enhances stability and durability, and facilitates wide-range angle setting with flexible sensor attachment, suitable for applications requiring precise rotation control.
Implementation Method 1
a plurality of rolling elements arranged to be rollable on an inner circumferential surface of the movable ring and an outer circumferential surface of the fixed ring
Implementation Method 2
The rotary table includes a sensor fixed to the base body and a dog fixed to the movable ring
Data Source
AI summary
A rotary table includes a base body, a movable ring rotatably arranged on the base body, a fixed ring arranged on an inner periphery side of the movable ring and fixed to the base body, and a plurality of rolling elements. The rotary table includes a sensor fixed to the base body and a dog fixed to the movable ring. The movable ring has a scale extending at least at a portion of an outer peripheral side surface, and a groove-shaped recess formed to be recessed inward from an outer periphery of the movable ring at a position corresponding to the scale on the outer periphery. The dog has a leg portion fitted to the recess, and a detected portion protruding outward from the leg portion and detectable by the sensor. The leg portion is able to be fixed to the movable ring at any position in the recess.